diff --git a/ietf/meeting/management/commands/schedule_generator.py b/ietf/meeting/management/commands/schedule_generator.py
index d6ae243a4..d930001b2 100644
--- a/ietf/meeting/management/commands/schedule_generator.py
+++ b/ietf/meeting/management/commands/schedule_generator.py
@@ -323,6 +323,7 @@ class Schedule(object):
         an entirely random timeslot, in which they fit.
         Parameter is an iterable of (timeslot, session) tuples.
         """
+        self.calculate_dynamic_cost()  # update all costs
         to_reschedule = [(t, s) for t, s in items if s.last_cost]
         random.shuffle(to_reschedule)
         if self.verbosity >= 2:
diff --git a/ietf/meeting/migrations/0028_businessconstraint.py b/ietf/meeting/migrations/0028_businessconstraint.py
index c5ccb354f..1ca943776 100644
--- a/ietf/meeting/migrations/0028_businessconstraint.py
+++ b/ietf/meeting/migrations/0028_businessconstraint.py
@@ -35,7 +35,7 @@ def forward(apps, schema_editor):
     BusinessConstraint.objects.create(
         slug="area_overlapping_other_area",
         name="Area meetings cannot conflict with other area meetings",
-        penalty=1000,
+        penalty=100000,
     )
     BusinessConstraint.objects.create(
         slug="session_overlap_ad",
@@ -58,7 +58,7 @@ def forward(apps, schema_editor):
     ConstraintName.objects.filter(slug='conflic2').update(penalty=10000)
     ConstraintName.objects.filter(slug='conflic3').update(penalty=100000)
     ConstraintName.objects.filter(slug='bethere').update(penalty=10000)
-    ConstraintName.objects.filter(slug='timerange').update(penalty=10000)
+    ConstraintName.objects.filter(slug='timerange').update(penalty=1000000)
     ConstraintName.objects.filter(slug='time_relation').update(penalty=1000)
     ConstraintName.objects.filter(slug='wg_adjacent').update(penalty=1000)
 
diff --git a/ietf/meeting/test_schedule_generator.py b/ietf/meeting/test_schedule_generator.py
index d281fb9fc..217c67f3b 100644
--- a/ietf/meeting/test_schedule_generator.py
+++ b/ietf/meeting/test_schedule_generator.py
@@ -8,7 +8,7 @@ from django.core.management.base import CommandError
 from ietf.utils.test_utils import TestCase
 from ietf.group.factories import GroupFactory, RoleFactory
 from ietf.person.factories import PersonFactory
-from ietf.meeting.models import Session, Constraint, TimerangeName, BusinessConstraint
+from ietf.meeting.models import Constraint, TimerangeName, BusinessConstraint
 from ietf.meeting.factories import MeetingFactory, RoomFactory, TimeSlotFactory, SessionFactory
 from ietf.meeting.management.commands.schedule_generator import ScheduleHandler
 
diff --git a/ietf/name/fixtures/names.json b/ietf/name/fixtures/names.json
index c04bf3391..3146794e3 100644
--- a/ietf/name/fixtures/names.json
+++ b/ietf/name/fixtures/names.json
@@ -5625,7 +5625,7 @@
       "desc": "",
       "name": "Can't meet within timerange",
       "order": 0,
-      "penalty": 10000,
+      "penalty": 1000000,
       "used": true
     },
     "model": "name.constraintname",
@@ -14541,7 +14541,7 @@
   "pk": "area_overlapping_other_area",
   "fields": {
     "name": "Area meetings cannot conflict with other area meetings",
-    "penalty": 1000
+    "penalty": 100000
   }
 },
 {